138 (number)

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138 (one hundred [and] thirty-eight) is the natural number following 137 but before 139.

<< 130 131 132 133 134 135 136 137 138 139 >> List of numbers — Integers ← 100 110 120 130 140 150 160 170 180 190 →
Cardinal	One hundred [and] thirty-eight
Ordinal	138th
Factorization	Failed to parse (Missing texvc executable; please see math/README to configure.): 2 \cdot 3 \cdot 23
Divisors	1, 2, 3, 6, 23, 46, 69, 138
Roman numeral	CXXXVIII
Binary	10001010
Hexadecimal	8A

1 In mathematics
2 In science
3 In other fields
4 References

In mathematics

Its factorization makes 138 a sphenic number. This number is the sum of four consecutive primes (29 + 31 + 37 + 41). It is the smallest product of 3 primes such that in base 10 the third prime is a concatenation of the other two.

138 is the third 47-gonal number.

138 is an Ulam number (Sloane's A002858).

It is also the number of stellations of the Triakis tetrahedron.

It is also probably the best bond number ever imagined

In science

In astronomy,

The New General Catalogue object NGC138, a spiral galaxy in the constellation Pisces

Asteroid 138 Tolosa

The Saros number of the solar eclipse series which began on 1472 June 6 and will end on 2716 July 11 The duration of Saros series 138 is 1244.0 years, and it contains 70 solar eclipses.

In other fields

One hundred [and] thirty-eight is also:

The year AD 138 or 138 BC.
138 is a number commonly associated with the horror punk band The Misfits. It comes from their song "We Are 138", the title of which is derived from the classic science fiction film THX-1138.[1] Many Misfits fans have merchandise and tattoos that depict the number.
- 138 is a Misfits tribute band featuring Brodie Foster Hubbard and Haunted Cologne.
- CXXXVIII is a New York based Misfits tribute band.
138 is a crew of vandals, artists, and musicians from the Boston area. It was started in 1995 by an artist named "Riot". Credited with inventing and popularizing "Graffilthy" - a form of public splatter art currently being used world wide. Crew members include: Zoom, Riot, Taint, Ego, Mung, Space, Evak, Mes, and at least 100 more to date.